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Standard Holders hold most conventional square tool bits. These holders are used for most all basic turning and facing operations. Tool bits can be mounted either way, placing the bit to the left or right of the tool post. This allows both right and left hand facing.

The height "T" listed in the chart is measured from the top of the lathe compound to the bottom of the tool bit slot in the holder. Minimum height "T" plus the tool bit "U" must be less than the center height dimension "A". If the cutting edge is ground below the top of the tool bit, the total height is reduced by that amount.